Description

The effect of getstr() is as though a series of calls to
getch() were made, until a newline or carriage return is received. The
resulting value is placed in the area pointed to by the character
pointer str. wgetnstr() reads at most n characters, thus preventing a possible overflow
of the input buffer. The user's erase and kill characters are interpreted,
as well as any special keys (such as function keys, HOME key,
and CLEAR key.)

Return Values

All routines return the integer ERR upon failure and an integer value
other than ERR upon successful completion.